Stanford University's R. Buckminster Fuller Digital Collection:

Stanford University Library's R. Buckminster Fuller Digital Collection:
https://collections.stanford.edu/bucky/bin/page?forward=home

The R. Buckminster Fuller Digital Collection consists of audio and video materials culled and digitally reformatted from the R. Buckminster Fuller Collection at Stanford. This project is supported in part by a grant from the federal Save America's Treasures Program, a joint program of the National Parks Service and the National Trust for Historic Preservation, administered by the National Endowment for the Humanities.

Free registration required.